43042141 has 4 divisors (see below), whose sum is σ = 43444512. Its totient is φ = 42639772.

The previous prime is 43042133. The next prime is 43042159. The reversal of 43042141 is 14124034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43042141 - 2³ = 43042133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43042171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201025 + ... + 201238.

It is an arithmetic number, because the mean of its divisors is an integer number (10861128).

Almost surely, 2^43042141 is an apocalyptic number.

It is an amenable number.

43042141 is a deficient number, since it is larger than the sum of its proper divisors (402371).

43042141 is a wasteful number, since it uses less digits than its factorization.

43042141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402370.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 43042141 is about 6560.6509585559. The cubic root of 43042141 is about 350.4542157245.

Adding to 43042141 its reverse (14124034), we get a palindrome (57166175).

The spelling of 43042141 in words is "forty-three million, forty-two thousand, one hundred forty-one".